Question

Part B
3√5+15√5

Part C
10√2-√3 x √2 x √3 x√3 x√3/
√2

Answer 1

Part B

3√5+15√5

= 3(√5)+15(√5)

= 18√5

Part C

10√2-√3 x √2 x √3 x√3 x√3/

√2

= 10√2 - √3 x 2√3 x 3√3 / √2

= 10√2 - 6√3

= 4√2